In the middle of the menstrual cycle :

( A ) FSH attains a peak level
( B ) both LH and FSH attain a peak level in the middle of cycle (about 14th day) and rapid secretion of LH leading to its maximum level during the mid-cycle called LH surge also occurs
( C ) LH attains a peak level
( D ) LH attains a peak level known as LH surge

1 Answer

(B) is the right answer.

Both LH and FSH attain a peak level in the middle of cycle (about 14th day). Rapid secretion of LH leading to its maximum level during the mid-cycle called LH surge induces rupture of Graafian follicle and thereby the release of ovum (ovulation).